Membranes Flashcards
Define a membrane
a continuous multicellular sheet composed of at least 2 tissue types
T/F: a membrane is not an organ
False; by definition, it is
The majority of membranes are made of which tissue type?
epithelial tissue bound to connective tissue
T/F: non-covering and non-lining tissues contain epithelial tissue
False; do not have epithelium, only two or more types of connective tissue
Where can a cutaneous membrane be found?
on the external surfaces of the body
What is a cutaneous membrane made of?
superficial keratinized stratified squamous epithelium attached to deep dense irregular connective tissue
What is keratin’s role in the cutaneous membrane?
provides support and protection
T/F: the upper layer of a cutaneous membrane is dead
True
T/F: a cutaneous membrane is a moist membrane
False; it is dry
Give an example of a cutaneous membrane
epidermis (skin)
Where can a mucous membrane be found?
lining the body cavities that are open to the external environment
What types of tissues are found in a mucous membrane?
stratified squamous epithelium or simple columnar epithelium attached to areolar (loose) connective tissue
T/F: a mucous membrane is dry
False; it is moist
What are the 2 functions of a mucous membrane?
absorption and secretion
What product is secreted by a mucous membrane?
mucous - duh!
What are some examples of mucous membranes?
reproductive linings, stomach, esophagus, etc.
What tissue types would make up a serous membrane?
simple squamous epithelium connected to areolar (loose) connective tissue
Where can serous membranes be found?
lining closed cavities
What does a serous membrane secrete?
serous fluid
What does hyaluronic acid do in a serous membrane?
makes the tissue viscous/slippery which helps to reduce friction
What is the visible appearance of a serous membrane?
shiny and moist
What are the 2 layers to a serous membrane?
parietal and visceral
What is the pleura related to?
belongs to the cavity
What is the visceral related to?
belongs to the organ
What is serous fluid?
a fluid that is found in-between the pleura and visceral layers
What is the pleura, pericardium, and peritoneum associated with?
pleura (lungs), pericardium (heart), peritoneum (abdominopelvic cavities)